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PNSWSH

PUBLIC INFORMATION STATEMENT...SERVICE CHANGE NOTICE 03-26
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
11:30 AM EDT TUE APRIL 22 2003

TO        FAMILY OF SERVICES /FOS/ SUBSCRIBERS...NOAA WEATHER
          WIRE SERVICE /NWWS/ SUBSCRIBERS...EMERGENCY MANAGERS
          WEATHER INFORMATION NETWORK /EMWIN/
          SUBSCRIBERS...NOAAPORT SUBSCRIBERS...OTHER NATIONAL
          WEATHER SERVICE /NWS/ CUSTOMERS AND PARTNERS...AND NWS
          EMPLOYEES

FROM      THERESE Z. PIERCE
          CHIEF...MARINE AND COASTAL WEATHER SERVICES BRANCH

SUBJECT   CHANGES TO TROPICAL CYCLONE FORECAST/ADVISORY PRODUCT
          EFFECTIVE MAY 15 2003

EFFECTIVE MAY 15 2003..THE TROPICAL PREDICTION CENTER/NATIONAL
HURRICANE CENTER /NHC/ AND THE CENTRAL PACIFIC HURRICANE CENTER
/CPHC/ WILL CHANGE THE FORMAT OF THE CODED STRING AS APPENDED TO
THE END OF THE MASS NEWS MEDIA DISSEMINATOR HEADER BLOCK...NWS
TPC/NATIONAL HURRICANE CENTER MIAMI FL...ON THE TROPICAL CYCLONE
FORECAST/ADVISORY PRODUCT.  THE STRING WILL CHANGE THE YEAR FROM
TWO DIGITS TO FOUR DIGITS.  CODING IS AS FOLLOWS:

EXAMPLE:  
HURRICANE ISIDORE FORECAST/ADVISORY NUMBER  28
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL   AL102002
0300Z MON SEP 23 2002

FORMAT:
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL  BSNOYR

WHERE:    /BS/ IS THE BASIN 
               AT...ATLANTIC  
               EP...EASTERN PACIFIC
               CP...CENTRAL PACIFIC
WHERE:    /NO/ IS THE TROPICAL CYCLONE NUMBER 01...99
WHERE:    /YR/ IS FOUR DIGITS OF THE YEAR
     
PRODUCT                       WMO HEADING           AWIPS ID

TROPICAL CYCLONE FORECAST/ADVISORY
ATLANTIC                      WTNT<21-25> KNHC      TCMAT<1-5>
EAST PACIFIC                  WTPZ<21-25> KNHC      TCMEP<1-5>
CENTRAL PACIFIC               WTPA<21-25> PHFO      TCMCP<1-5>

NOTE...THERE ARE NO CHANGES TO WMO HEADINGS OR AWIPS IDENTIFIERS
AND NO ACTIONS ARE REQUIRED FOR CONTINUED RECEIPT OF THIS PRODUCT
FROM NHC AND CPHC. 
               
A PUBLIC INFORMATION STATEMENT DETAILING OTHER CHANGES TO THE
TROPICAL CYCLONE FORECAST/ADVISORY PRODUCT WAS ISSUED BY THE NWS
ON MARCH 10 2003...REFERENCE SCN 03-16.
                              
A WEB PAGE HAS BEEN ESTABLISHED TO ALLOW USERS TO TEST ALL
CHANGES TO THE TROPICAL CYCLONE FORECAST/ADVISORY PRODUCT TO
ENSURE CORRECT PRODUCT DECODING.  SEE EXAMPLES AT /USE LOWER CASE
LETTERS/

     WWW.NHC.NOAA.GOV/NEWFORMAT_EXAMPLES.SHTML

IF YOU HAVE ANY QUESTIONS...PLEASE CONTACT

     MR. SCOTT KISER
     NATIONAL WEATHER SERVICE
     MARINE AND COASTAL SERVICES BRANCH
     1325 EAST WEST HWY ROOM 13126
     SILVER SPRING MARYLAND 20910

     PHONE /301/ 713 1677 EXTENSION 121

THIS NOTICE AND OTHER SERVICE CHANGE NOTICES CAN BE FOUND ON THE
INTERNET AT /USE LOWER CASE/

     WWW.NWS.NOAA.GOV/OM/NOTIF/HTM


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